The Case IH STX 480 MASTER is a powerful articulated four-wheel-drive tractor, designed for demanding agricultural applications. Built with a heritage of robust engineering from Case IH, a manufacturer with a long history in agricultural equipment, this model represents an evolution in large tractor technology. It typically features a high-horsepower diesel engine, such as the Cummins QSX15, providing approximately 480 HP, and is equipped with an advanced Case IH PowerDrive Continuously Variable Transmission (CVT) for precise speed control and automatic power management. The STX 480 MASTER is engineered for reliability and efficiency in heavy-duty operations, offering significant power and advanced features to enhance productivity. This professional service and repair manual provides comprehensive guidance for the maintenance, repair, and troubleshooting of the Case IH STX 480 MASTER. It covers all essential systems, including the powertrain (engine, transmission, drivetrain, PTO), hydraulics, electrical systems, chassis, steering, and operator station. The manual offers detailed, step-by-step instructions for disassembly, reassembly, component overhaul, and adjustment procedures, supported by high-quality diagrams and illustrations. Its purpose is to equip operators and technicians with the knowledge necessary to perform scheduled maintenance, diagnose faults, and execute repairs effectively, ensuring the longevity and optimal performance of the tractor and saving time and money on service.